Bender, the trigger adjust similar to the old style triggers, although the trigger is slightly different. The xmark is designed to block the trigger and the sear, this was a safety improvement over the older style triggers. The newest change was the external weight adjustment that supposedly allowed a 2 lb adjustment (down to 3.5 or somewhere around that). Even if you removed the small screw you could not reduce it lower than Remington's set "safe" weight.
The issue with removing the screw(weight screw at base of trigger shoe), is there is a tiny spring that will be left inside with no pressure, that spring floating around will give inconsistent pull weights.
As for the other adjustments (sear engagement, weight, over travel) they were caked with glue to prevent the screws from moving, but appears also as a deterrent to user adjustment. The older triggers just has a slight amount of compound that could be scraped off with a fingernail or small scribe.
Now there are aftermarket spring kits available for the xmark to reduce weight past Remingtons default
Trigger Springs|Aluminum Pillar|Pillar Bedding|Gunsmithing
Issue is this kit in not recommended for the average user, it really should be installed by a qualified gunsmith.
In the end, it is up to the user to take responsibility for any maintenance and changes to their firearm. Just know that the consequence of failure could be a negligent discharge, the thought of accidentally hurting anyone has drawn a clear line for my qualifications and home smithing limits.
I have no issue with installing a factory tuned trigger(Jewel, Timney), as I will not mess with it after that. The fact that Remington shipped out faulty triggers sickens me.
The short answer to your question is Yes, you can remove the glue and then reseal with whatever you desire, just know after this recall, if you choose to work on the xmark, you own every bullet that leaves your rifle (intentional or negligent).
Disclaimer: All trigger work should be performed by a qualified and competent gunsmith.
